Ink distributor



H. H. KREILING, DECD. L. KREILINGI, ADMINISTRATRIX.

INK DISTRIBUTOR.

APPLICATION FILED ,ocT. 8. 1921.

. 1 429 14g 7 Patented Sept. 12, 1922.

Patented Sept. 12, 1922.

HENRY H. KREILING, nnonasnn, BY noorsn nnnrniria,anivriivrsrna'rnranpr orrroaeo rnnrlvorsp f INK nrsriainu'ron.

Application 'filed octob'er s, 1921. se ial 'iro.i5oe;421.

Tar-all whom itma'g concern:

I Be it known that I, LOUISE 'KREILING, a

citizen of the UnitedStates of America,"and

a-residentz of Chicago, county of Cook, and

, State of Illinois, have been'duly appointed administratrix of the estate of HnNRYl-l. 'KREILING, deceased, late a citizen of the United'States of America, who invented certain new and useful Improvements in Ink Distributorsyof which the following. is a specification.

I Thisinventlon relates to printing presses,-

and particularly to the ink distributing means for that type of bed and platen presses known as the Colts and Universal presses,

". a satisfactory ink distributor of that class wherein one of the distributing rollers is given an axial reciprocation while rolling in contact withthe inkingrollers'whichdeliver the ink to the type form. Like other in'kdistributors of this generalclass, an aim of the invention is to-overco'me inferior distribution of ink over the printingsurface 1 due to thesame parts of the inking rollers repeatedly engaging the same parts of the type form. The undesirable distribution of ink referred to when'no'longitudinal movable distributor is provided is partlcularly.

evident when the inking rollers pass over lines parallel with their direction of move-.

ment. To overcome this objection one or more of the inking rollers which contact with the type form are caused to-coact withv an ink distributing roller whichrotates by-cone tact with an inking roller,but;also reciprocates in the direct-ion of its length to uniformly distribute the'ink over all parts of the inking rollers which come in contact with the'type. Such vibratingdistributors when applied to aColts or Universal press have been found'faulty in some features of construction particularlyin that they are diffie cult'to apply, and inthe way. Such vibrat-l' ing distributors are also not needed for cer-' tain classes of work and it istherefore de- Qsirable thatithey may be quickly applied or removed from the inking roll unit. For this 'purpose the present design of vibrating dis-v tributor includes a-saddleor bearingboxfor one of the inking rollers so that whenapplied panying drawings,- wherein to the machine-the 5 usual saddlei i box may he slid out-of 'placeandtheipres showing the 1 distributing'rollenin sectiona'nd 6 5 a full view of one jotfitheflend bearing mem; *bers whlch. carries the ink distributing I roller. i :1 t

Figures 3 and 4am sectional detailslrespectively on the lines 3 3and of Fig.

' ure '2,- and illustrate the ratchet construction which permits the distributor, to rotate continuously in one direction without traveling along'its' supporting shaft. a

Fig. 5 is a detail of aratchet and nut loose- :7 ly;;received by the distributingroller, but

having a frictional .connectiony'therewith through resilient cogs shown in Figures 2 and4. ,o a I g Fig.6 is, a fragmentarylongitudinal sec tion of the distributingroller'fand itssupportinggshafth Fig; 7 is a sectional detailillustrating the relation between the main supply-ink roller and the ink distributing yrollers when the latter are idly iirotatin-gabovethe-bed and In the type of press to whichthefimprovement is iapplicable, the printing surface is im a substantially vertical;plane,; and above Y which is located the mainink; supply roller 1. In the-operation of; the": press theink distributing rollers '2 1 are ireciprocated over the ink supply'roller Land thefltype' -form between each impression, but it'is often neces= sary for-the-pressman to render the platen inoperative and permit the,\clistributing.' rollers to idly rotate from their upper positioninto contactrwithvthe inksup-ply roller 1 while not stopping the; drive on the imachinc and the rotation of this supply roller. The ratchet construction illustrated in Figures 2 to 6 inclusive serves to permit the distributing roller to run continuously without movement along its shaft when the inking rollers are in their upper position. This ratchet mechanism is wholly enclosed in the distributing roller so as to be safe and not involve any projecting parts. The distributing roller 3 consists of a cylindrical metallic shell 4 closed at its ends by apertured disks 5. Extending axially through the distributing roller is its supporting shaft 6. This supporting shaft is threaded at one end, the thread 7 coacting with internal threads on the nut 8, loose within the shell 4 between one of the end disks 5 and the- 9 is provided with recesses 14 for receiving the free ends of the pawls when these are forced out of engagement with the teeth 10 at times when the distributing roller 3 rotates independently of the nut 8. The pawls at all times serve to provide the desired frictional engagement between the nut 8 and the distributing roller.

The shaft 6 of the distributing roller is carried at the lower end of cranks 15. The upper ends of the cranks are rigid withcrank-shafts 16 having bearings in boxes 17 which are vertically adjustable in special bearings 18 for supporting one of the inking rollers 2. The adjustment of bearing box 17 along the box 18 is affected by screw 19 extending through an arm 20 of box 18 and having threaded engagement with the bearing box 17. This adjustment permits the distributing roller 3 to be shifted into contact with either one or both of the adjacent inking rollers 2. Movement of the box 17 outwardly away from the bearing member 18 is provided by the cotter pin 21 which serves to retain these two bearing elements in as sembled relation.

The distributing roller 3 is held in the desired resilient engagement with one of the inkingrollers 2 by a spring 22 which surrounds the threaded bolt 23 and is located between the adjusting nut 24 and a post 25 extending from bearing box 18. The bolt 28 is pivotally connected at its lower end to an arm 26 fast to theend of shaft 16, and which may extend at a substantially right angle to bolt 23.

In the operation of the device, the inking unit shown in Figure 1 is reciprocated vertically as usual in Colts and Universal presses from the position in which it is shown in Figure 7 in contact with the ink supply roller 1, downwardly over the print form. The rollers 2 are rotated by contact with a continuously rotating supply roller 1 and by contact with the type form. The distributing roller 3 is driven by contact with one of the rollers 2 and is caused to reciprocate axially when so driven by frictional engagement with the nut 8 which is therefore rotated with the roller 3 and caused to travel back and forth on the threaded portion 7 of shaft 6. The ratchet mechanism does not come into operation ordinarily as there are more turns to the thread 7 than the number of rotations which are imparted to the distributing roller. But the presses to which the improvement is applied can be caused to permit the inking rollers to remain in the upper position while being driven by the supply roller 1 while the platen is also at rest away from the type, thus enabling the operator to clean the type without stopping the drive of the press. At such times the distributing roller is continuously rotated in one direction for an indefinite period and it is found that the ratchet becomes effective to permit the distributing roller to rotate without traveling along the shaft 6.

Although but one specific embodiment of this invention has been herein shown and described it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim:

1. In a device of the class described, the combination with an ink roller and a coacting distributing roller, a threaded supporting shaft for said distributing roller, a nut loosely journaled within the distributing roller in. threaded engagement with said shaft, said nut being provided with ratchet teeth at one end and a resilient pawl supported inside of said distributing roller for coacting with the teeth on said nut.

2. A device of the class described, the combination with an ink roller and a coacting distribut ng roller, a supporting shaft for said distributing roller, said supporting shaft having a threaded portion extending within the distributing roller, a nut inside of said distributing roller and coacting with said threaded portion of the shaft, and frictional means for causing said nut to rotate with the distributing roller.

3. A device of the class described, the combination with an ink roller and a coacting distributing roller, a shaft for supporting said distributing roller, said shaft being carried by cranks secured to its ends, crankshafts and bearing therefor, arms secured to the ends of the crank-shafts and adjustable springs coacting With said arms for the purpose of resiliently engaging the distributing roller with the coacting inking roller.

4. In a device of the class described an ink distributing roller, a supporting shaft for said distributing roller, said supporting shaft having a threaded portion Within said distributing roller, and a nut in said distributing roller eoacting With the threaded portion of said shaft, said nut having fric- 10 tional engagement With the distributing roller.

Signed at Chicago, this 6th day of October, 1921. v

LOUISE KREILING, Administratriw 'of H emy H. Krez'lz'ng, de-

ceased. 

